But you also deserve to do that safely. While this normally would be expected to be of little consequence in most patients, prior to prescribing LEVITRA, physicians should carefully consider whether their patients with underlying cardiovascular disease could be affected adversely by such vasodilatory effects. This helps to maintain an erection. If you have an erection that lasts for more than 4 hours, you should go to the nearest hospital emergency department. Online telehealth services like Lemonaid offer you both safety and convenience. Never give it to other people even if their condition appears to be the same as yours. Hypotension was not observed when vardenafil 5 mg and terazosin were administered 6 hours apart.Lemonaid can prescribe sildenafil (generic Viagra), tadalafil (generic Cialis), and vardenafil (generic Levitra). You can get a prescription online following a quick and easy visit with a member of our clinical team. Then the Lemonaid pharmacy, licensed in all 50 states, will ship your meds directly to your door in discreet packaging. detected when LEVITRA 20 mg was dosed 24 hours before NTG. (See Figure 2.) Figure 2: Placebo-subtracted point estimates (with 90% CI) of mean maximal blood pressure and heart rate effects of pre-dosing with LEVITRA 20 mg at 24, 8, 4, and 1 hour before mg NTG sublingually. Levitra is discontinued, but its generic is available Although this article discusses Levitra, this brand-name drug has been discontinued. But the generic version of this drug, vardenafil, is.